Novak Djokovic says he’s dealing with a hamstring injury at the Australian Open.
The nine-time champion beat Roberto Carballes Baena in his first round match today.
Andy Murray beat thirteenth seed Matteo Berrettini in a fifth set tie-break to reach the second round.
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Women’s second seed Ons Jabeur needed three to beat Timara Zidansek.
Fourth seed Caroline Garcia, and fifth seed Aryna Sabalenka were among those to move into round 2.
